Trail Running calendar near Castaic 2026-2027

Experience a mountain run at 4,720 feet elevation through the pine forests surrounding Lake Gregory. This longstanding community event offers 5K and 10K courses on semi paved paths for runners and walkers of all levels.

A trail running event at Malibu Creek State Park on August 15, 2026 offering 50k and 25k courses, stocked aid stations, prize purse and festival amenities.

Two days of mud and obstacles in Moorpark on a 5K course with 15 major obstacles, rinse stations, and a Basecamp area with food trucks, vendors and music.

A 5k trail run at Red Rock Wilderness near Silverado, CA featuring fire roads and single track, 300 feet of climbing, one aid station, a cupless policy, and no pets allowed.

A one day community trail running festival in Los Angeles on August 29, 2026 with a 4 mile group run, expo, vendors, and a raffle.

A community event in Norwalk on September 5, 2026 featuring a 3 mile in-person and virtual run, a youth sprint and a high school invitational.

The 61st Mt Baldy Run to the Top on September 7, 2026 is a fundraising mountain trail race in the Angeles National Forest covering about 7 miles with 4,000 feet of ascent to the 10,064 foot summit, with proceeds aiding local services.

A 5 km Stadion obstacle race with 20 obstacles at Angel Stadium on September 12, 2026, plus a 1-1.5 km kids race and spectator access.

An evening trail running event in Griffith Park with a 10-mile team relay, a 5K solo race, and a 1K kid run. The course features skyline views, race photos, medals, live music, and team awards.

10k trail race in Topanga through red sandstone cliffs and oak forest, with aid stations, beer garden, vegan tacos and a non timed 4.5 mile Hiker's Delight.

An urban event in downtown Los Angeles with a stair climb up 1,664 steps at the U.S. Bank Tower, an Urban Hike past major cultural sites, a Heroes Challenge category, and a virtual participation option.

A 3.1 mile trail event at Ascot Hills Park in Los Angeles with chip timing and views of Dodger Stadium and the Hollywood sign. Proceeds support the Wilson High School Fire and Police Magnet Cadet Program and Ascot Hills Park.

25K and 50K trail ultras on Mt. Wilson in the Angeles National Forest, featuring technical single track, regular aid stations, and significant elevation gain.

Trail race in Simi Valley on Sept 26, 2026 offering 50K, 30K and 15K courses through Rocky Peak, Las Lljas and Tapo Canyon.

A themed run in Long Beach on September 27 with Half Marathon, 10K, 5K, a family mile and kids dash, ocean views, chip timing and a pizza themed finish line festival.

A 100 mile endurance run through the San Gabriel backcountry, held since 1986; the 2026 edition uses an out and back course from Loma Alta Park.

9.1 miles to the Mt San Antonio summit with 3,926 ft vertical gain on steep, exposed mountain trails; course capped at 500 entrants in Angeles National Forest.

A 5K on shaded eucalyptus horse trails at Ernie Howlett Park in Palos Verdes Peninsula on October 4, 2026. In person and virtual options are available, plus a fundraising route that waives the fee with at least $100 raised for Strides in Re..

Multiple race distances start and finish at Sam Lynn Ballpark in Bakersfield, featuring mixed terrain on paved and dirt trails and a notable climb on the half. Aid stations, race day services, post race refreshments and awards are provided.

The ABWR Half Marathon - Valencia will take place in Santa Clarita on Sunday 4 October 2026. You can run between 5 and 13 miles.